Claude Code Plugin

Helius is the first, and currently the only, crypto company with an official Claude Code plugin. One install gives you live Solana blockchain tools and expert Solana coding patterns inside Claude Code — Helius MCP server, DFlow MCP server, and expert skills.

Helius is the first, and currently the only, crypto company with an official Claude Code plugin in the Anthropic-curated registry. The plugin bundles everything you need to build on Solana in one install — MCP servers for live blockchain access, expert skills that guide Claude’s behavior, and deep reference files for every Helius product.

Helius MCP Server

Auto-starts helius-mcp — 10 routed tools for querying the blockchain, sending transactions, managing webhooks, and more

DFlow MCP Server

Auto-starts the DFlow MCP — tools for trading API details, response schemas, and code examples

Expert Skills

All skills, in one place, making Claude a Solana expert running on Solana’s fastest infrastructure provider

Install

Official (Anthropic-curated)

Install from the Anthropic-curated plugin registry:

claude plugin install helius @claude-plugins-official

From the Helius Marketplace

Install directly from the helius-labs/core-ai marketplace inside Claude Code:

/plugin marketplace add helius-labs/core-ai
/plugin install helius@helius-labs

Local Testing

git clone https://github.com/helius-labs/core-ai.git
claude --plugin-dir ./core-ai/helius-plugin

What’s Included

MCP Servers

The plugin auto-starts two MCP servers when Claude Code launches:

Server	Transport	What It Provides
Helius (helius-mcp@latest)	stdio	10 routed tools (heliusAccount, heliusWallet, heliusAsset, heliusTransaction, heliusChain, heliusStreaming, heliusKnowledge, heliusWrite, heliusCompression, expandResult) covering DAS API, RPC, webhooks, streaming, wallet analysis, onboarding, Solana knowledge, and docs
DFlow (pond.dflow.net/mcp)	HTTP	Trading API details, response schemas, code examples for DFlow integrations

See Helius MCP for the full tool catalog.

Skills

Skill	Invoke	What It Does
Build	/helius:build	Makes Claude an expert Solana developer. Routes to the right tools and reference files for DAS, Sender, WebSockets, LaserStream, Webhooks, Wallet API, and more.
Phantom	/helius:phantom	Makes Claude an expert at building frontend dApps. Covers Phantom Connect SDK (React, React Native, browser), token gating, NFT minting, payments, and secure frontend architecture.
Jupiter	/helius:jupiter	Makes Claude an expert at building DeFi apps. Combines Jupiter APIs (swaps, lending, limit orders, DCA) with Helius infrastructure.
DFlow	/helius:dflow	Makes Claude an expert at building trading apps. Combines DFlow APIs (spot swaps, prediction markets, streaming, KYC) with Helius infrastructure.
OKX	/helius:okx	Makes Claude an expert at building trading and intelligence apps. Composes OKX DEX aggregation, smart money signals, and meme analysis with Helius infrastructure.
SVM	/helius:svm	Solana protocol expert. Explains architecture, consensus, execution engine, account model, and validator economics using live sources.

Reference Files

Deep documentation bundled with each skill that Claude reads before writing code — covering DAS API, Sender, Priority Fees, Webhooks, WebSockets, LaserStream, Wallet API, Enhanced Transactions, Onboarding, Phantom Connect SDK (React, React Native, browser), token gating, NFT minting, payments, frontend security, Jupiter (Swap V2, Lend, Trigger, Recurring, Perps, Predictions, tokens/prices, Plugin), DFlow spot trading and prediction markets, OKX DEX aggregation and intelligence, and integration patterns.

API Key Setup

The plugin auto-starts the MCP server, but you still need a Helius API key. On first use, Claude guides you through one of these paths:

Existing Key

If you already have a key from dashboard.helius.dev, have Claude call the setHeliusApiKey action on heliusAccount:

Just tell Claude: “Set my Helius API key to YOUR_API_KEY”

Signup

Create a new account from Claude Code via a hosted payment link or autopay. Each step is an action on heliusAccount:

1. Claude calls heliusAccount with action: "generateKeypair" — creates a Solana wallet
2. Claude calls heliusAccount with action: "signup" and mode: "link" — returns a payment URL you open in a browser to pay with any wallet (or mode: "autopay" to pay USDC from the local keypair automatically)
3. After paying via link, Claude calls heliusAccount with action: "signup" and mode: "resume" — finalizes provisioning and configures the API key automatically

CLI

Use the Helius CLI from the terminal:

npx helius-cli@latest keygen
npx helius-cli@latest signup --plan agent --email [e-mail] --first-name Jane --last-name Doe   # Print hosted payment link
# (pay in browser, then:)
npx helius-cli@latest signup --resume         # Finalize account
# Or autopay from the local keypair:
npx helius-cli@latest signup --plan agent --pay --email [e-mail] --first-name Jane --last-name Doe

DFlow API key: REST dev endpoints work without a key (rate-limited). For production or WebSocket access, get a key from pond.dflow.net/build/api-key.

Usage

Once installed, ask questions in plain English. Claude picks the right tools and reads the right reference files automatically:

• “Build a swap interface using DFlow and Helius Sender”
• “What NFTs does this wallet own?”
• “Set up webhooks to monitor my wallet for incoming transfers”
• “Parse this transaction: 5abc...”
• “Build a portfolio viewer that shows tokens after connecting Phantom”
• “Send 1 SOL to Gh9ZwEm...”
• “Create a prediction market trading UI”

Plugin Structure

The plugin contains three top-level files and a skills/ directory:

Path	Purpose
.claude-plugin/plugin.json	Plugin manifest (name: "helius", v1.0.0)
.mcp.json	Auto-start config for Helius + DFlow MCP servers
skills/build/	/helius:build — SKILL.md + 9 Helius product reference files
skills/phantom/	/helius:phantom — SKILL.md + 16 reference files (Phantom + Helius)
skills/jupiter/	/helius:jupiter — SKILL.md + 16 reference files (Jupiter + Helius)
skills/dflow/	/helius:dflow — SKILL.md + 12 reference files (DFlow + Helius)
skills/okx/	/helius:okx — SKILL.md + integration patterns (OKX + Helius)
skills/svm/	/helius:svm — SKILL.md + 10 architecture reference files

Browse the full source on GitHub.

Learn More

Helius MCP

Full tool catalog and standalone MCP setup

Build Skill

Core Solana development skill details

DFlow Skill

Trading skill details and composite workflows

GitHub

Source code and issue tracking